Convert C++ code to Rust

[ugreg]

Tasks

1. Port the existing C++ code to Rust
2. Document how to setup Rust and run the new code

#include <iostream>
#include <vector>
#include <string>

const std::string RED = "\033[91m";
const std::string YELLOW = "\033[93m";
const std::string BLUE = "\033[94m";
const std::string PINK = "\033[95m";
const std::string GREY = "\033[90m";
const std::string RESET = "\033[0m";

const std::string filledSquare = "\u25A0";

void drawColoredBar(int percentage, const std::string& color) {
    const int maxBarWidth = 50;
    int filledWidth = static_cast<int>((static_cast<double>(percentage) / 100) * maxBarWidth);

    std::cout << color;
    for (int i = 0; i < filledWidth; ++i) {
        std::cout << filledSquare;
    }
    std::cout << GREY;
    for (int i = filledWidth; i < maxBarWidth; ++i) {
        std::cout << filledSquare;
    }
    std::cout << RESET << " (" << percentage << "%)" << std::endl;
}

int main() {
    std::vector<int> percentages = {52, 48, 32, 64};
    std::vector<std::string> colors = {RED, YELLOW, BLUE, PINK};

    for (size_t i = 0; i < percentages.size(); ++i) {
        drawColoredBar(percentages[i], colors[i]);
    }

    return 0;
}

Acceptance criteria
The code must compile and it must produce the same output as seen here:
. Create a pull request to the main branch with the working code.